derek.holloway
7502bf64a4
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68 lines
2.3 KiB
LLVM
68 lines
2.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=newgvn -S %s | FileCheck %s
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@a = common global i32 0, align 4
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@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
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define i32 @main() #0 {
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; CHECK-LABEL: @main(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr @a, align 4
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; CHECK-NEXT: [[NEG:%.*]] = xor i32 [[TMP0]], -1
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; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[TMP0]], -1
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; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
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; CHECK: if.then:
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; CHECK-NEXT: br label [[IF_END]]
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; CHECK: if.end:
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; CHECK-NEXT: [[PHIOFOPS:%.*]] = phi i32 [ [[TMP0]], [[ENTRY:%.*]] ], [ [[NEG]], [[IF_THEN]] ]
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; CHECK-NEXT: [[STOREMERGE:%.*]] = phi i32 [ [[TMP0]], [[IF_THEN]] ], [ [[NEG]], [[ENTRY]] ]
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; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[STOREMERGE]], [[PHIOFOPS]]
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; CHECK-NEXT: br i1 [[CMP2]], label [[IF_THEN3:%.*]], label [[IF_END6:%.*]]
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; CHECK: if.then3:
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; CHECK-NEXT: br i1 false, label [[LOR_RHS:%.*]], label [[LOR_END:%.*]]
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; CHECK: lor.rhs:
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; CHECK-NEXT: store i8 poison, ptr null, align 1
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; CHECK-NEXT: br label [[LOR_END]]
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; CHECK: lor.end:
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; CHECK-NEXT: store i32 1, ptr @a, align 4
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; CHECK-NEXT: br label [[IF_END6]]
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; CHECK: if.end6:
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; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr @a, align 4
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; CHECK-NEXT: [[CALL:%.*]] = call i32 (ptr, ...) @printf(ptr @.str, i32 [[TMP2]])
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%0 = load i32, ptr @a, align 4
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%neg = xor i32 %0, -1
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%cmp = icmp sgt i32 %0, -1
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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br label %if.end
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if.end:
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%storemerge = phi i32 [ %0, %if.then ], [ %neg, %entry ]
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%neg1 = xor i32 %storemerge, -1
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%cmp2 = icmp ult i32 %storemerge, %neg1
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br i1 %cmp2, label %if.then3, label %if.end6
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if.then3:
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%tobool = icmp eq i32 %storemerge, -1
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br i1 %tobool, label %lor.rhs, label %lor.end
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lor.rhs:
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%tobool5 = icmp ne i32 %0, 0
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%phitmp = zext i1 %tobool5 to i32
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br label %lor.end
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lor.end:
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%1 = phi i32 [ 1, %if.then3 ], [ %phitmp, %lor.rhs ]
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store i32 %1, ptr @a, align 4
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br label %if.end6
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if.end6:
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%2 = load i32, ptr @a, align 4
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%call = call i32 (ptr, ...) @printf(ptr @.str, i32 %2) #3
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ret i32 0
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}
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declare i32 @printf(ptr, ...) #2
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